68153268 has 24 divisors (see below), whose sum is σ = 159159168. Its totient is φ = 22698496.

The previous prime is 68153257. The next prime is 68153299. The reversal of 68153268 is 86235186.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23380 + ... + 26132.

It is an arithmetic number, because the mean of its divisors is an integer number (6631632).

Almost surely, 2^68153268 is an apocalyptic number.

It is an amenable number.

68153268 is an abundant number, since it is smaller than the sum of its proper divisors (91005900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68153268 is a wasteful number, since it uses less digits than its factorization.

68153268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823 (or 4821 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 68153268 is about 8255.4992580703. The cubic root of 68153268 is about 408.4719404318.

The spelling of 68153268 in words is "sixty-eight million, one hundred fifty-three thousand, two hundred sixty-eight".